Home / 13,113.10-19,666.34-3,753.18

Finding the Fourth Proportional to 13,113.10, 19,666.34 and 3,753.18

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Solution

The fourth proportional to 13,113.10, 19,666.34 and 3,753.18 is: 5,628.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,113.10 : 19,666.34 = 3,753.18 : x
  2. Step 2: Convert to fraction form
    13,113.10/19,666.34 = 3,753.18/x
  3. Step 3: Cross multiply
    13,113.10x = 19,666.34 × 3,753.18
  4. Step 4: Simplify right side
    13,113.10x = 73,811,295.20
  5. Step 5: Solve for x
    x = 73,811,295.20/13,113.10
  6. Step 6: Final answer
    x = 5,628.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.